Improvement in coffee-pots



W. M. WILLIAMS. Coffee Pbt.

Patent 6d Nov. 24, 1868.

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WILLIAM M. WILLIAMS, or s'r. Louis, MISSOURI.

Letters Patent No. 84,456, dated November 24, 18.68.

IIEPROVEMENT IN COFFEE-POTS.

The Schedule referred. to in these Letters Patent and mialdng part of the same.

To all whom it may concern Be it known that 1, WILLIAM M. WILLIAMS, of St, Louis, in the county of St. Louis, and State of Missouri, have invented a new and useful Oofl'eePot';

- and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference thereon.

The nature of my invention consists in.a novel arrangement of cone-tubes in the bottom ofa pot, combined with a strainer, centially'located in regard to said tubes, and a condenserdid, by means of which arrangement an increase of heating-surface is obtained, the substance to be decocted is quickly and thoroughly acted upon, and the aroma of the latter is perfectly retained.

To enable those skilled herein to make and use my said invention, I will now describe its construction and application, referringto the accompanying drawings, of which Figure 1 is a vertical sectional elevation of said coffeapot, and 1 Figure 2 is atop sectional plan along the line x y.

. I construct the exterior vessel, A, of the general shape usual, and with usual handle, spout, &c., attachments. The surface hereof whieh'is exposed to the action of the heat, however, is arranged with a number of conical cavities, to. These cavities permit the hot gases from the furnace or fire-room to penetrate high into the interior of the coffee" or other vessel, acting similarly unto the tubes in so-called tubular boiler. Thus the fluids contained in said vessel are subjected to the action of heat at the bottom surface a. Then said cone-tubes a divide the said fluid volume, and, by transmitting the heat, through their metallic sides, to each part of said fluid immediately surrounding the tube, the heating-action is greatly intensified, thereby expediting the processes of cooking, and insuring economy of time and expense in said processes. I

I would especially mention that said tubes a, may be made cylindrical in shape, or of any other form, the action thereof, to introduce heated gases into the higher fluid volumes of the vessel, being, to a great extent, independent of said form.

' Usually, in the application of this portion of my invention, the conical tubes will be found afl'ording facilities for easy manufacture and easy cleansing of the vessels after use, which may cause their application in preference to other forms.

The strainer B, to receive the ground coffee, tea, or

other substance to be decocted, is centrally placedbetween the tubes a. The strainer B can be easily withdrawn from its socket-seat, b, (secured to thebottom, (1,) for cleansing, 850. This, moreover, permits the application of the vessel A for PUIPOSGS of heating fluid, or cooking generally, when a strainer would be un-' necessary and an obstruction.

The top of the vessel or pot A is closed by the lid 0. This is itself arranged as a receptacle, having a :utensil is produced.

bottom, sides, and top. When the. lid is in its position, the top, 0, thereof forms the lid proper of the vessel A. The bottom, 0, then reaches some distance into the vessel A. The lidhas a cup, 0*, through which fluids may be poured into the interior of the lid.

The object of constructing the lid (3 as a receptacle is as follows: In making decoctions of aromatic plants, seeds, 800., the hot fluids used to abstract from such plants their aroma or nourishments are constantly emitting large volumes of vapor, after said extraction of aroma and nourishment has already, to some extent, been accomplished. Said vapors thus charged pass the lid of the common forms of cooking-vessels, and this escape causes a serious loss. To avoid this, it will only be necessary,

in the operation of my said invention, to fill the interi'or of the lid 0, (through c) with cold water, for instance. This will reduce the temperature of the bottom, 0, and sides of O tosuch extent that the vapors of the decoction in the vessel A, charged with aroma and nourishment, in striking against said bottom and sides of the lid 0, will give off a portion of their heat to the metal of the lid, and, through this, to the fluid within, whilst, by this reduction of temperature, said vapors will be condensed to fluid form, and drop back into the vessel A. Moreover, as the aroma of cofl'ee, tea, and other substances is seated in certain dils, which are volatile, and said oils,. by the action of heat, being volatilized, these would also escape in the common arrangement of lids of these cooking-vessels; but, in the same manneras were the fluid vapors condensed, the volatile oils will again be formed out of the vapors thereof, when said vapors touch the lid 0, thereby again I reventin a loss thereof.

When the evolution of steam or vapor from the fluids in the vessel A is not too great, the spout D may be closed by the cap d, thus preventing here a waste of vapor.

The water contained in the lid 0 will, in the process of cooking, gradually becomeheated, and said heated water can be used advantageously for all purposes usual.

There is, therefere, in the application of a condenserlid, no loss of heat.

By the arrangement herein described, a very efiicient The substance to be brewedis held by the strainer between the tubes at, where it is immediately and thoroughly acted upon by the heat arising in the latter.

The arrangement of the condenser-lid prevents all escape of the aroma.

Having thus fully described my invention,

What'I claim, is

'The vessel A with tubes a, strainer B, and condenser-lid (l, the. strainer'being located centrally in regard to the tubes, and the whole being combined and arranged as and for the purpose set forth.

- WM. M. WILLIAMS.

Witnesses:

M. Rnnnonrn, OHAs. H. BOYLE. 

